TCP-IP integration

We are looking at incorporating a TCP-IP stack (particularly PPP)into our existing microcontroller-based family of monitoring units. > Target: Embedded Atmel processor (RISC) > Language: C / assembler if needed > Scope: Define what is "really" needed (TCP flavor), select a cost-effective commercial product (protocol stack?), then integrate it into our product. NOTE: This product will use SLOW (1200, 2400 bps) half-duplex radio links to send the data to a head end. The TCP/IP software must accommodate the delays. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Complete ownership and distribution copyrights to all work purchased. 3) Programmer manual(s) to allow modification and troubleshooting in the future. ## Platform Atmel Atmega128 embedded RISC microprocessor. No RTOS.